产品描述: PF-543 hydrochloride 是一种新型Sphingosine kinase 1 (SphK1, SK1) (鞘氨醇激酶)抑制剂,Ki为3.6 nM。PF-543 hydrochloride 可诱导细胞凋亡、坏死和自噬 |
靶点:
SphK1(Cell-free assay):2.0 nM; SphK1(Cell-free assay):3.6 nM(Ki);Apoptosis; S1PReceptor; Autophagy; LPLReceptor |
体外研究:
PF543是一种细胞渗透性羟基甲基吡咯烷化合物,其以可逆的,鞘氨醇竞争性方式抑制SphK-1/SphK1催化的鞘氨醇磷酸化,对S1P受体没有亲和力,对Sphk2 (10 μM下抑制6.8%)或 46种其他脂质和蛋白激酶(IC50 >10 μM)的抑制活性很弱。在SphK1过表达的1483头颈癌细胞中,PF-543减少10倍的内源性S1P水平,并成比例增加鞘氨醇水平。PF-543与SphK1可逆结合(k off t1/2=8.5 min),具有高亲和力,结合常数(Kd)为5 nM。PF543不影响1483,A549,LN229,Jurkat,U937和MCF-7细胞的增殖和存活,尽管会使细胞中S1P/鞘氨醇比率发生巨大改变。在全血中,PF-543是有效的S1P形成抑制剂,表明鞘氨醇激酶的SphK1亚型是人血中S1P的主要来源 |
体内研究:
PF-543, a potent sphingosine kinase 1 inhibitor, reduced dysfunctional hypertrophy, associated with protection against cardiomyocyte apoptosis. |
细胞实验:
Cell lines: 1483,A549,LN229,Jurkat,U937,MCF-7 Concentrations: ~1 μM Incubation Time: 7天 Method: CellTiter-Glo 试验 |
动物实验:
Animal Models: C57BL/6 mice Dosages: 1 mg/kg Administration: i.p. |
参考文献:
1. Schnute ME, et al. Modulation of cellular S1P levels with a novel, potent and specific inhibitor of sphingosine kinase-1. Biochem J, 2012, 444(1), 79-88. 2. MacRitchie N, et al. Effect of the sphingosine kinase 1 selective inhibitor, PF-543 on arterial and cardiac remodelling in a hypoxic model of pulmonary arterial hypertension. Cell Signal. 2016 Aug;28(8):946-55. |
溶解性:
Soluble in DMSO、Ethanol |
保存条件:
-20°C |
配置溶液浓度参考:
|
1mg |
5mg |
10mg |
1 mM |
2.148 ml |
10.739 ml |
21.478 ml |
5 mM |
0.43 ml |
2.148 ml |
4.296 ml |
10 mM |
0.215 ml |
1.074 ml |
2.148 ml |
50 mM |
0.043 ml |
0.215 ml |
0.43 ml |
|
注意: |
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